import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import router from '@/router/index'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 50000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['X-Token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (response.config && response.config.responseType === 'blob') { // 判断是不是下载请求
      return response
      // const excelUrl = window.URL.createObjectURL(new Blob([res]));
      // const link = window.document.createElement('a');
      // const fileName = JSON.parse(response.config.data).fileName; // 文件名
      // const suffix = JSON.parse(response.config.data).suffix; // 文件后缀
      // const isDownload = JSON.parse(response.config.data).isDownload; // 是否是下载（如果不是下载则为导出）
      // link.href = excelUrl;
      // link.download = `${fileName}.${suffix ? suffix : 'xlsx'}`;
      // document.body.appendChild(link); // 兼容FireFox
      // link.click();
      // window.URL.revokeObjectURL(excelUrl);
      // link.remove(); // 兼容FireFox
      // console.log(isDownload ? '下载成功！' : '导出成功！')
      // return Promise.resolve(res)
    }
    if (res.code !== 0) { 
      

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === 4) {
        MessageBox.confirm('登陆过期，请重新登陆', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          //跳转到login路由，并把目标路由的url路径保存在login的query中
          router.replace({
            path:"/login",
            query: {
              redirect: router.currentRoute.fullPath // router对象自带的属性
            }
          })

        })
      }else if (res.code === 3) { //无权限
        Message({
          message: res.message || 'Error',
          type: 'error',
          duration: 5 * 1000
        })
      }else{
        Message({
          message: res.message || 'Error',
          type: 'error',
          duration: 5 * 1000
        })
      }

      return Promise.reject(res.message || 'Error')
      //return res.message || 'Error'
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
